Cycle-saddle attachment.



- No. 662,346, Patented Nov. 20, I900.

J. B. snuoks & .1. HOLT. CYCLE SADDLE ATTACHMENT.

(Application 61nd Mar. 6, 1900.) (No Model.) 2 Sheets-Sheet l.

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Pa tnted Nov. 20, I900.

B. BROOKS &. J. HOLT.

CYCLE SADDLE ATTACHMENT.

(Application filed Mar. 6, 1900.)

2 Sheet-Sheel 2.

-(No Model.)

WITNESSES UNrrEn STATES FFTQE.

JOHN BOULTBEE BROOKS, OF BROMSGROVE, AND JOHN HOLT, OF ASTON, ENGLAND, ASSIGNORS TO THE J. B. BROOKS d COMPANY, LIMITED, OF

BIRMINGHAM, ENGLAND.

CYCLE-SADDLE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 662,346, dated November 20, 1900.

Application filed March 6, 1900. Serial No. 7,527. (No model.)

To ail whom it may concern:

Be it known that we, JOHN BOULTBEE BROOKS, managing director, residing at Finstall, Bromsgrove, in the county of Worces- 5 ter, and JOHN HOLT, works manager, residing at 97 Frederick road, Aston, near the city of Birmingham, England, subjects of the Queen of Great Britain, have invented certain new and useful Improvements in Cycle-Saddle At- IO tachments, of which the following is a specification.

This invention relates to cycle-saddle attachments, and has for its object to provide an improved construction of attach ment-boss having means which prevent any inadvertent slipping of the parts from their set positions after clamping and yet admit of an infinitely fine adjustment of the said parts being obtained.

Figure 1 of the accompanying drawings represents aside elevation of a cycle-saddle fitted with an improved attachment-boss constructed and arranged in accordance with our invention. Fig. 2 represents an end elevation of the said boss, with the frame-wires gripped between the washers thereof shown in section. Fig. 3 is a side elevation of the said boss separately. Fig. 4, is a like elevation as Fig. 3, but with outer washer and inner washer (which is in the form of a thrust or wedge plate) removed. Fig. 5 is an elevation of the inside of one of the said inner washers or thrust-plates. Fig. 6 represents a horizontal section of the boss upon the dotted line 00, Fig. 2. Fig. 7 shows various views of the component parts of the boss disassembled or separated from one another. Fig. 8 represents an elevation, end view, and plan of one of the series of three friction-blocks or locko ing-bolts employed in the improved device Figs. 13 and 14 show in horizontal section and plan our invention applied to another kind of saddle attachment-boss.

The same letters of reference indicate corresponding parts in Figs. 1 to 12.

The attachment-boss consists ofa Ushaped clip or body part (1, adapted to encircle and grip the L-pin or seat-pillar, with outer faces or checks a of the said clip being sunken or recessed at a so as to form an annularflange or abutment a having a plain inner periphery a Square or angular holes are made through the said cheeks at a to receive the correspondingly-sectioned middle part b of the cross-pin Z), whose outer ends b which are screw-threaded, carry the clamp ing-nuts cl, the outer frame-gripping Washers e, and the inner washers f, which latter also act as thrust-plates, through the medium of which a series of friction-blocks or radiallyworking locking-bolts g, located and retained within the recesses of the cheeks, are forced 7o outward and into locking contact with the peripheries of the abutment-flanges a Thus each of the two inner washers or plates f (which may have keep grooves or channels f on their outer sides for the reception of the frame-wires it) has cut into it a series of gaps f corresponding in number to the series of bolt-blocks employed, which may be in any suitable number, withthe edges f of the said gaps inclined so as to provide a series of inwardly-tapering or wedge-like bearing-surfaces around the inner face of .the thrust-plate, which are opposed to and come against the inclined inner ends g of the boltblocks g, whose sides are embraced by or confined Within the gaps f of the thrust-plate, while theirouter ends or faces g come against the inner periphery of the flange orabutment of the clip-cheeks. The thrust-plates and their respective loose bolt-blocks are thus constrained to move together when the washers and saddle-frame are rotated to efiect an alteration in the tilt adjustment of the saddle relative to its support, while in order to retain or secure the locking-blocks within the recesses when the washers and thrust-plates are removed cage plates or keepers, such as t', are employed, consisting of thin. metal disks fitted onto and being free to rotate around necks or collars (1, which surround the holes a in the cheeks and are riveted or bushed over the disks (see Figs. 6, 7, and to secure them to the clip, while the said plates are gapped at t to form guides for the bolt-blocks to radially work within; but the edges t of the said gaps are arranged to overlap lips or small flanges g formed along the inner edges of the said bolts, which are thereby secured against inadvertent detachment.

By screwing up a nut or the nuts of the pin the elements are drawn together, and by the impingement of the inclined planes or bearing-surfaces of the thrust-plates on the opposed inclined planes of the radial boltblocks the saidblocks are driven outward and made to forcibly impinge against and set up frictional contact with the inner peripheries of the abutment-flanges, thus locking the whole of the connected parts against rotation.

It is obvious that our improved system of locking is applicable to all forms of saddle attachment-bosses in which framegripping or frame-carrying washers are employedsuch, for instance, as that shown in Figs. 13 and 14, which has an eyebolt Z9 and loose pillar-gripping cheek 0a a the other parts of which correspond to and are marked with the same letters of reference as the like parts shown in Figs. 1 to 9.

Instead of forming inclined planes or bearing-surfaces on the opposed parts of both the bolt-blocks and the thrust-plates it is obvious that the inclines may be formed only upon the bolts or upon the thrust-plates.

Having fully described our invention, what we desire to claim and secure by Letters Patent is- 1. A cycle-saddle attachment, comprising a boss adapted to be clamped on the seat-pillar and provided with two flanged peripheries, radially-movable bolts arranged to engage the peripheries of said flanges, a thrust-plate arranged to thrust the bolts into engagement with the flanges, means for actuating the thrust-plates and means for securing the saddle-frame to the thrust-plates, said thrustplates and bolts being rotatably adjustable relative to the boss topermit of the saddle being tilted, substantially as described.

2. A cycle-saddle attachment, comprising a boss adapted to he clamped to the seat-pillar and provided with two flanged peripheries, radially-movable bolts arranged to engage the peripheries of said flanges, thrust-plates provided with gaps in which the bolts move, and having beveled edges arranged to engage the bolts and thrust them into engagement with the flanges, means for actuating the thrust-plates and means for securing the saddle-frame to the thrust-plates, said thrustplates and bolts being rotatably adjustable on the boss to permit of the saddle being tilted, substantially as described. 1'

3. A cycle-saddle attachment, comprising a boss adapted to be clamped to the seat-pillar and provided with two cheeks having annular flanges on their outer faces, a cross-pin having angular portions fitted in corresponding apertures in the cheeks and provided at its opposite ends with threaded cylindrical extensions, radially-movable bolts arranged to engage said flanges, gapped disks secured to the cheeks over the bolts and operating to hold the latter in place on the cheeks, thrustplates loosely arranged on the cross-pin opposite the cheeks and provided with gaps in which the bolts move and having beveled edges arranged to engage correspondinglybeveled ends on the bolts which project through the gaps in the disks and thrust said JOHN BOULTBEE BROOKS. JOHN HOLT.

Witnesses:

HENRY SKERRETT, ARTHUR T. SADLER. 

